The AC Delco 3 wire alternator was used in most General Motors products, and ... Wiring this alternator is well within the capabilities of anyone with average Most people mistakenly identify a 3 wire alternator as a one wire alternator (I
know, ... Due to voltage loss through the wiring, you will actually lose voltage by
the “Where do I put the third wire on my one-wire alternator?!” ... In that case, the
additional connector and wires used on the traditional SI are unnecessary.